If you can either boot to normal Windows or Safe Mode then disable reboot on blue screen, like this:http://pcsupport.about.com/od/tipst...Then you will have time to read the information on the blue screen when it comes up and that could help us. In particular the name of the error, the first string of figures, and any file name that gets a mention could be useful.

The contributors there suggest Safe-mode and so on. Also rebooting safe and normal-mode with system warm - straight after a failed first boot; and also from cold - with power removed and battery too - before restoring power etc... But rather than duplicate the above post in detail suggest you have browse of it too....

Which presuming you have... at the least...

Power down - remove mains input and remove battery.

Open RAM slot access and carefuly remove RAM sticks.

Clean them with a soft rubber eraser (or similar) as you might still find on a pencil...; or a separate rubber eraser (as found in any office stationary store).

Do NOT use anything abrasive; nor a typical domestic household metal cleaning polish etc.; as they often have mild abrasives included; and likely will encourage tarnishing/oxidation (maybe even mild corrosion...?) afresh down the road... (Think of brassware that is regularly cleaned with suitable cleaning products; it soon needs it again after each cleaning sesion...)

Having cleaned the edge contacts (both sides) of each RAM stick, carefully install only one (if two or more present. Ensure you maitain a minimum of 512Meg installed, as XP likes that as minimum; although it will stagger along and boot if all is well - with a little less - but it will be s-l-o-w... Re-install battery and power up...

If BSOD (Blue Screen Of Death) appears again... power down, remove battery again. Replace the stick installed with the other (if more than one...). Re-install battery and power up...

If problem goes away with second stick installed (alone) it may be a RAM stick is dying - the first one... If laptop boots OK (no BSOD) with the first stick, add in the second stick - or better... replace the first with the second. Doing the latter allows you to check each stick individually... If BSOD re-appears when second stick added in or re-isntalled alone...; but laptop boots OK with the other (first) stick alone... then is likely the second stick is faulty...

If BSOD goes away... you had dirty RAM contacts...; and/or perhaps the RAM sticks were'nt fully seated in their respective slots... Ensure RAM is properly inserted at all times... With the heating/collong that goes in a small area like a laptop.... things can sometimes ease apart slightly and thus you get contact issues.

If BSOD persists regardless of the above... then it is "unlikely" to be RAM. It may be a driver issue; it may even be a hard drive issue (a long shot but not unknown).

BSOD will indicate where it had problems... and the message may indicate a RAM issue; it may not... If it does mention RAM... then the above routine may resolve it all for you. (I might be inclined to go through it regardless...?) If it is other than RAM (courtesy of BSOD message content) others here with more familiarty of that will advise you better than I. (I haven't been across BSOD messages for an age...; and they are little arcane to say the least...)

Incidentally, a brief (and I mean brief) trawl for the first part of your error BSOD message (STOP: 0X0000001A) does suggest/point to RAM issues...

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